mirror of
https://github.com/nspcc-dev/neo-go.git
synced 2024-11-22 19:29:39 +00:00
23f118a1a9
* treat connected/handshaked peers separately in the discoverer, save "original" address for connected ones, it can be a name instead of IP and it's important to keep it to avoid reconnections * store name->IP mapping for seeds if and when they're connected to avoid reconnections * block seed if it's detected to be our own node (which is often the case for small private networks) * add an event for handshaked peers in the server, connected but non-handshaked ones are not really helpful for MinPeers or GetAddr logic Fixes #2796.
95 lines
3.6 KiB
Go
95 lines
3.6 KiB
Go
package network
|
|
|
|
import (
|
|
"context"
|
|
"net"
|
|
|
|
"github.com/nspcc-dev/neo-go/pkg/network/payload"
|
|
)
|
|
|
|
type AddressablePeer interface {
|
|
// ConnectionAddr returns an address-like identifier of this connection
|
|
// before we have a proper one (after the handshake). It's either the
|
|
// address from discoverer (if initiated from node) or one from socket
|
|
// (if connected to node from outside).
|
|
ConnectionAddr() string
|
|
// PeerAddr returns the remote address that should be used to establish
|
|
// a new connection to the node. It can differ from the RemoteAddr
|
|
// address in case the remote node is a client and its current
|
|
// connection port is different from the one the other node should use
|
|
// to connect to it. It's only valid after the handshake is completed.
|
|
// Before that, it returns the same address as RemoteAddr.
|
|
PeerAddr() net.Addr
|
|
// Version returns peer's version message if the peer has handshaked
|
|
// already.
|
|
Version() *payload.Version
|
|
}
|
|
|
|
// Peer represents a network node neo-go is connected to.
|
|
type Peer interface {
|
|
AddressablePeer
|
|
// RemoteAddr returns the remote address that we're connected to now.
|
|
RemoteAddr() net.Addr
|
|
Disconnect(error)
|
|
|
|
// BroadcastPacket is a context-bound packet enqueuer, it either puts the
|
|
// given packet into the queue or exits with errors if the context expires
|
|
// or peer disconnects. It accepts a slice of bytes that
|
|
// can be shared with other queues (so that message marshalling can be
|
|
// done once for all peers). It returns an error if the peer has not yet
|
|
// completed handshaking.
|
|
BroadcastPacket(context.Context, []byte) error
|
|
|
|
// BroadcastHPPacket is the same as BroadcastPacket, but uses a high-priority
|
|
// queue.
|
|
BroadcastHPPacket(context.Context, []byte) error
|
|
|
|
// EnqueueP2PMessage is a blocking packet enqueuer, it doesn't return until
|
|
// it puts the given message into the queue. It returns an error if the peer
|
|
// has not yet completed handshaking. This queue is intended to be used for
|
|
// unicast peer to peer communication that is more important than broadcasts
|
|
// (handled by BroadcastPacket) but less important than high-priority
|
|
// messages (handled by EnqueueHPMessage).
|
|
EnqueueP2PMessage(*Message) error
|
|
// EnqueueP2PPacket is similar to EnqueueP2PMessage, but accepts a slice of
|
|
// message(s) bytes.
|
|
EnqueueP2PPacket([]byte) error
|
|
|
|
// EnqueueHPMessage is similar to EnqueueP2PMessage, but uses a high-priority
|
|
// queue.
|
|
EnqueueHPMessage(*Message) error
|
|
// EnqueueHPPacket is similar to EnqueueHPMessage, but accepts a slice of
|
|
// message(s) bytes.
|
|
EnqueueHPPacket([]byte) error
|
|
LastBlockIndex() uint32
|
|
Handshaked() bool
|
|
IsFullNode() bool
|
|
|
|
// SetPingTimer adds an outgoing ping to the counter and sets a PingTimeout
|
|
// timer that will shut the connection down in case of no response.
|
|
SetPingTimer()
|
|
// SendVersion checks handshake status and sends a version message to
|
|
// the peer.
|
|
SendVersion() error
|
|
SendVersionAck(*Message) error
|
|
// StartProtocol is a goroutine to be run after the handshake. It
|
|
// implements basic peer-related protocol handling.
|
|
StartProtocol()
|
|
HandleVersion(*payload.Version) error
|
|
HandleVersionAck() error
|
|
|
|
// HandlePing checks ping contents against Peer's state and updates it.
|
|
HandlePing(ping *payload.Ping) error
|
|
|
|
// HandlePong checks pong contents against Peer's state and updates it.
|
|
HandlePong(pong *payload.Ping) error
|
|
|
|
// AddGetAddrSent is to inform local peer context that a getaddr command
|
|
// is sent. The decision to send getaddr is server-wide, but it needs to be
|
|
// accounted for in peer's context, thus this method.
|
|
AddGetAddrSent()
|
|
|
|
// CanProcessAddr checks whether an addr command is expected to come from
|
|
// this peer and can be processed.
|
|
CanProcessAddr() bool
|
|
}
|